A metric predicting how likely a website is to rank in search results, based on factors like backlinks and content quality.

Jason Barnard positions domain authority as one metric in a larger picture. Domain Authority measures search ranking potential - but Entity Authority spans all three systems of the Algorithmic Trinity. A domain can rank well while being misrepresented by AI. True authority means AI understands you, trusts you, AND recommends you.

The UCD framework provides a more complete authority measurement than domain metrics alone. High domain authority without Understandability means AI might rank you but misrepresent you. High domain authority without Deliverability means AI might rank you but not recommend you. Entity Authority requires all three dimensions.

Use when educating clients who are fixated on domain metrics. Domain authority is table stakes, not the goal. Connect to UCD framework as the complete authority measurement. Entity Authority = Understanding + Credibility + Deliverability across the entire Algorithmic Trinity.